Composite lath and heat-insulating material.



G. H. ELLIS` COMPOSITE LATH AND HEAT INSULATING MATERIAL,

APPLICATION FILED JUNE I8, 1915. f' 1,228,442

Patented June 19W.

: eren libelilllhlhllll CGIMJPULETE LATE AND HEATNSULTXNG 'Speoiicaton o-fllctters etent.

Patented June 5, 19t?,

Application lea'l fune le, 17915. Seite! No. 34,531.

Paul, in the county of Ramsey and Stute oit Minnesota, have invented certain new and ueei'ul improvements in Composite Laith and Heatlnsulziting Materiels; and l do hereby declare the'tollowing to be e full, clear, and exact description of the invention, such es will enable others skilled in the art to which it nppertains to make and use the same.

My present invention has for its particular object the provision of en in'lproved compos-ite luth end heet iueulsitingf materiel, and is in the nature of n inodilicntion of or im provenienton the composite leth end heet insuluting materiel disclosed, and broadly claimed in my prior Potent ,l26,l87, ot' flaite, .lenunry 26, 1915.

The salient novel 'feature of the present invention consists lin melting the leth of e herd vegetable iiher or paperboard. This, materiel used as a, lethy is very strong, does not expend or contract under varying moisture to any materiel extent end .does not rot, ie very tough and strong, has the desired flexibility required for many purposes, and generally stated, is tree from the many objections found in Wooden leth, and tui thermore, maybe produced at less cost than could Wooden lath.

The invention is illustrated in the accompanying' diiewings wherein like characters indicate like parte throughout the several views. Referring to the drawings:

Figure l is a perspective View with some l parte sectioned and some parte broken ewey,

showing; one form of the iher lath applied to :L heut insulating' materiel; end` Fig; 2 ie a` similar. view illustrating e somewhat modified form of the fiber lath.

ln Fig. .'l, the numeral l indicates a heat insulating material, the numeral 2 :t Weterproof facing; therefor, und the numeral 3 e liber luth. Preferably, the insulating 'nia-- terizxl l is in a flexible felted sheet such that disclosed and claimed iu LettersPatent of the United States, No, 908,681, granted to .lames lll. Lappen, of date, January th', 1909, und entitled Flex felt, hut the Said insulating material may take various other forms :1nd might, for example, he composed of shredded sti-ew, corn, stalks, hemp, excel sior, shevings,` and the like. `The Waterproof facing is preferably n heavy peper inovvn to the trade es Neponsetpeper. The Vtiher leth shown in Fig. l ere each con1- .plete individuel members or solid' bodies formed with beveled edges so that the op using undercut or beveled edges of edjeeent ath forni a dove-tail channel into which portions of the plaster i will be forced to securely anchor the plaster to the seid leth.

The leth are placed directly against the Wetenproo facing 2 :ind ere secured thereto l end to the heet insuleting materiel l, prefH erehly hy nails 5 driven therethrough end having their ends clenched on the feces of the'leth,

The construction es illustreted in is lilre that illustrated in l, except to the form of the iher iaith, the latter in this instance being :mede up, euch oi e reletively narrow inner strip 6 sind e relatively Wide outer 'strip if". The narrow inner strips 6 are preferably much thicker than the outer strips 'Z' find the letter are pleced thereon 'with looth edges projecting', no that the op posingundercut edges of edjecent let-h form ,an ingulnr dove-tail channel into which portions of the plaster 4l: will run. ln this construction, the nails 5 are driven through the insulating material 1, through the Weterproof facing 2 and through both lath :torming sections 6 and 7 and are clenched on the face of the letter, thereby securely fastening all of the seid parts together.

The vegetable iiher latch will not split as will Wooden lath, hence, eliord el much 1netter materiel Vagainst which to clench the ends of the metallic fastening devices.

Whitt l cleiin is:

l, el composite lath and heetinsulating material comprising a felted flexible insulating,l sheet, and a vegetable liber board lath secured thereto. Y

2.` A composite leth end heet insulating materiel comprising e flexible insulating body sheet, water proof acin f applied thereto, vegeta-ble fiber board iaith applied to said Water proof facing; and metallic festening devices driven through seid three elements and clenched against said lath.,

A. composite lath and heet insulating' lli) materiali omprsng a *tenng mentsand cenchad aga- "l1 Y" I A mmb msulamg body s179199@ P. www pm facing appe thmtmegetable ber board ah upped to sadwaie'r proof facing, and metalic iasevices driven through Said three elle- -,t hihi the u'ndzrcuf.

edges of said la'th being 

